1.

A and B working separately can do a piece of work in 9 and 12 days respectively. If they work on alternate days beginning with A, then in how many days, the work will be completed?

A. \[11{\scriptstyle{}^{1}/{}_{4}}\]days
B. \[5{\scriptstyle{}^{1}/{}_{4}}\] days
C. \[\text{9}{\scriptstyle{}^{1}/{}_{4}}\] days
D. \[\text{10}{\scriptstyle{}^{1}/{}_{4}}\] days
Answer» E.


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